Roof structure



C. LWALKER.

ROOF STRUCTURE. APPLICATION FILED JUNE 1. 1920.

1 ,42 6, 832, Patented Aug. 22, 1922.

I 6 JTQE W 6 o v v JQ J W I chafi fyq fker 4% ATTORNEYS UNITED STATES PATE NT OFFICE.

CHARLES I. WALKER, .OF SAN FRANCISCO, CALIFORNIA. 1

R]? STRUCTURE,

v I To all whom it may concern Be it knownthat I, CHARLES I. NVALKER, a citizen of the United'States, and a' resident of the city and county of San Francisco and State of California, have invented a new and useful Roof Structure, of which the following is a specification.

This invention relates to roof construction and more particularly to the construction of roofs of vehicles'such as railway freight cars.

' It is one of the objects of thepresent invention to provide an extremely durable, substantial, simple and comparatively inexpensive type of roof. structure and particularly. to providev a strong and practicable roof and ridge pole structure for freight cars.

' *It is another object of the present invention to secure a substantially weather-proof juncture between metallic or other roof sheets and a longitudinally extending ridge pole for a freight car and also to secure a facile and practicable method for securing a running board to the ridge pole. v

A further object of the invention is to provide a ridge pole composed essentially of a structure presenting side channels in which may be laid and secured the contiguous edges of roof sheets, and particularly to provide a roof structure including an I-beam ridge pole. v

The invention possesses other objects and features of advantage, some of which, with foregoing, will be made manifest in the following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood that it is not intended to limit the invention to the embodiment shown by the said drawings and description as variations may be adopted within the scope of the invention as set forth in the claims.

Referring to the drawings:

Fig. 1 is a perspective of a portion of a railway freight car incorporating the present invention.

Fig. 2 is a transverse vertical sectional view showing in detail the ridge pole structure.

It is desirable to secure a simple and at the same time practicable and durable ridge pole structure and especially to secure such a structure for railway freight cars, and the present invention consists of a roof struc- 1920. Serial No. sa5,52'2.,

ture in which there are transverse rafters or carlines upon which are laid roofing boards and upon these are laid roof sheets preferably of metal. Freight car roofs have a slight upward pitch from the eaves and the present invention involves a ridge pole structure having side or lateral channels or grooves in which maybe laid the upwardly turned contiguous marginal portions of'the roof sheets and the invention further includes; means for over-lapping they laid marginal portions and for securing the same in place in the channels. Further a feature of the invention consists of the novel construction and combination of a running board structure on the ridge pole. I

A preferred embodiment offthe invention is illustrated as comprising a car body 2 with eave joist 3 from which spring inwardly and upwardly carlines 4 which, while they may be of any suitable material and form, are. shown as comprising inverted channel irons. Upon the carlines are placed longitudinal roofing boards or sheathing 5 which are spaced longitudinally at the ridge of the roof oneachside of an interposed longitudinally extending ridge pole6. This ridge pole may be built up or may comprise an integral continuous structure orbody preferably in the form of an I-beamthus providing on each side longitudinalrecesses or channels. I

The I-beam ridge pole 6 is securely fastened in place on the carlines 4 as by rivets, bolts or other means 7 passing through the bottom flanges. Metallic roofing sheets are shown as extending in transversely laid strips. 8 from the eaves of the car body upwardly to the ridge pole 6; the upper marginal portions of the roof sheets being bent upwardly or flanged and snugly fitted upon the top surface of the bottom flanges and laid upright against the surfaces of the web of the I-beam 6; a marginal portion of the roof sheet being extended up well toward the bottom surface of the top flanges of the I-beam. To secure an effective weather joint and simple means for fastening the flanges or upwardly turned portions of the roofing sheet in place against the web of the I-beam, longitudinally extending clamping strips 9 may be fitted into the longitudinal channels or grooves along the ridge pole and there clamped securely as by means of bolts or other devices 10 that may extend through theiastenin strips, the up-turned n p sro the roof sheets and through the web of the I-beam.

By utilizing.. hathing-5 of. a'fthicknessa" substantially equal to the thickness of the bottom flanges of the I-beam or other'rid'ge pole forming structure, it Will be seen that the roofing-sheet 8will have a substantially continuous support on the sheathing and t he bottom flanges 7 of the I-beami v A further feature of the invention resides in the attachment to the topflanges of the I 'I beam ridge pole'of a substantial running a board device including a series .eflongitudinally extending andlaterally spaced planks 11 that are bolted asat 12 or otherwise secured to transverselyextending,-

longitudinally spaced supporting plates 13 that are riveted, bolted or otherwise attached tof the top flanges ofc the I-beam as fat14. H '1 QFrom theabove it/will beseen that the roofstructure includes a substantially continuous integral ridge pole running from end to end ofthecar thus providing for the desired degree of rigidity and strength oi the roof and also providing'a structure that is simple in its several elements and maybe erected with amimmum expenditure ofytime. and labor because fof the facility with which the parts can be applied, fitted togetherandsecured, and it will further be seen that the" ridge'pole' structurepro- 'vides for practicable" and substantially weather tight joints between the roof sheets and the ridge pole proper.

A further feature ofthe inv ntion resides in the eave structure which here includesa length of angle-iron 15 havingoneflange I laidagainst the sidingand secured by means assing vthrough thebeam or side plate 3. he top flange of the angle iron eave molding is turned'outwardly and isoverlapped by the ar Ijsheets s'iwhii'a in,

under the fiangej at 16." What is claimed is pl. A'roofing structure including a ridge pole having channels in its sides,-and roofin'g sheets having ends laidin the channels and secured therein by longitudinally extending clamping means.

2., A roofing structure including a ridge 7 pole havingcliannels in its sides, and roof ing sheets having endsconforming with lying in the channels, and clamp means for securing the sheets insaidchannelsand to the sides of the pole 3. A roofingstructure I-bjeain ridge pole, sheathing extending from the bottom of the pole, roofing sheets laidmon the sheathing and having their ends] bent upward [and laid a in the channeled sidesfof' the: pole, and clamping strips extending-,5

along the channels and securing the ends of the sheetsin place v Y 45A car 1 0st, structure ;including,,fan

I-beam "ridge pole; and roof sheets having their edges extending intothe side channels ,ofthe .beam, and clamping means bolted along the sheet'ends. ,a

v5. car roof structure ncluding, an I- beam ridge pole n the side channe'lsmof ing the laid portion; of the, sheets therein, the roof sheets having upstanding marginal portions. andis aid means including" clamping passing through the said pole,

In testlmony j d v i V i set .inv hand at San; Francisco, Callforma,

strips secured," along said portionsg i by bolts this 25th day 9f Mayt:

ln presencebf which roof sheets are laid, means" for secur- V whereof ,r havek hereunto i CHARLE I. W I; ER.- f a 

